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ENGLISH
drEd
2)
depending on the setting of the parameter FOU2
Characteristics of the redundancy switching (backup)
Fault in the electronics:
Analogue signal at fault value
2)
Both sensor elements defective: Analogue signal at fault value
2)
One sensor element defective: Analogue signal corresponds to
the temperature of the 2
nd
measuring element (backup).
Drift threshold warning exceeded: Analogue signal
corresponds to measured temperature.
Drift threshold alarm exceeded: Analogue signal at fault
value
2)
Ondr
Delay of the drift detection
By means of this function short exceeding of the drift thresholds
can be filtered out (e.g. in case of large temperature gradients).
ddr
value = time for which a drift value must be above the
warning / alarm threshold (drW, drA) in order to activate the
diagnostic output.
• Setting range: 0 ... 300 minutes,
• in steps of 0.5 minutes.
If the operating voltage is interrupted during the delay time, the
unit stores the remaining time. If the drift persists after
re-activation of the operating voltage, the delay becomes active
again until the remaining time has elapsed.
ddr
Output polarity of the diagnostic output
2 settings can be selected:
PnP
= positive switching /
nPn
= negative switching.
P-n
Display unit
Measured value and setting values (ASP, AEP, drW, drA, COF) can
be displayed in the following units:
°C
;
°F
Set the unit to be displayed before entering the setting values.
This avoids rounding errors generated internally during the con-
version of the units and enables exact setting of the values.
Units are delivered from the factory with: Uni = °C
Uni
Fault number
Display of a fault number for detailed fault analysis
(
→
Table on pages 23 / 24).
Fnr
Reset to factory settings
Click on the respective reset button.
rES
